Current Weather and Forecast in San Antonio, TX
Texas, United States 🇺🇸
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About the weather in San Antonio
San Antonio has a humid subtropical climate. August is the warmest month, with average highs of 96°, and January the coldest, when nights fall to around 44°. May brings the most rain, on about 16 days, while July is the sunniest, with 12.0 hours of sunshine a day. Over a whole year it rains on roughly 113 days.
San Antonio climate guide: monthly averages, seasons and the best time to visit
Common questions
What is the coldest month in San Antonio?
January, with highs of 63°F (17°C) and lows near 44°F (7°C). The coldest day in the 2015-2024 record fell to 8°F (-13°C).
What is the best month to go to San Antonio?
Aim for January to April and October to November if you get the choice: warm days, manageable rainfall and plenty of daylight line up, and highs average 74°F (23°C) against roughly 9 wet days a month. For the same question asked the other way round, see where else is warm in January.
How many rainy days does San Antonio get in a year?
About 113 days bring measurable precipitation, totalling 39.1 inches (994 mm). That works out at roughly 8.8 mm on an average wet day.
When is San Antonio at its hottest?
August, averaging 96°F (36°C) by day and 77°F (25°C) overnight. The hottest single day in our 2015-2024 record for this location reached 107°F (42°C).
Which month is wettest in San Antonio?
May, at 6.8 inches (172 mm) over about 16 days. February is the driest month, at 2.1 inches (54 mm).
Is there snow in San Antonio?
Effectively no. The 2015-2024 record for San Antonio shows no regular measurable snowfall.